<div class="gmail_quote">On Mon, Jun 15, 2009 at 4:17 PM, Moralejo, Alfredo <<a href="mailto:alfredo.moralejo@roche.com">alfredo.moralejo@roche.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div link="blue" vlink="purple" lang="EN-US"> <div> Hi, I’m having what I think is a timeouts issue in my cluster. I have a two node cluster using qdisk. Everytime the node that has the master role for qdisk becomes down (for failure or even stopping qdiskd manually), packages in the sane node are stopped because of the lack of quorum as the qdiskd becames unresponsive until second node becames master node and start working properly. Once qdiskd start working fine (usually 5-6 seconds) packages are started again. I’ve read in the cluster manual section for “CMAN membership timeout value” and I think this is the case. I’ve used RHEL 5.3 and I thought this parameter is the token that I set much longer that needed: <cluster alias="CLUSTER_ENG" config_version="75" name="CLUSTER_ENG"> <totem token="50000"/> … <quorumd device="/dev/mapper/mpathquorump1" interval="3" status_file="/tmp/qdisk" tko="3" votes="5" log_level="7" log_facility="local4"/> Totem token is much more that double of qdisk timeout, so I guess it should be enough but everytime qdisk dies in the master node I get same result, services restarted in the sane node: Jun 15 16:11:33 rmamseslab07 qdiskd[14130]: <debug> Node 1 missed an update (2/3) Jun 15 16:11:38 rmamseslab07 qdiskd[14130]: <debug> Node 1 missed an update (3/3) Jun 15 16:11:43 rmamseslab07 qdiskd[14130]: <debug> Node 1 missed an update (4/3) Jun 15 16:11:43 rmamseslab07 qdiskd[14130]: <debug> Node 1 DOWN Jun 15 16:11:43 rmamseslab07 qdiskd[14130]: <debug> Making bid for master Jun 15 16:11:44 rmamseslab07 clurgmgrd: [18510]: <info> Executing /etc/init.d/watchdog status Jun 15 16:11:48 rmamseslab07 qdiskd[14130]: <debug> Node 1 missed an update (5/3) Jun 15 16:11:53 rmamseslab07 qdiskd[14130]: <debug> Node 1 missed an update (6/3) Jun 15 16:11:53 rmamseslab07 qdiskd[14130]: <info> Assuming master role Message from syslogd@rmamseslab07 at Jun 15 16:11:53 ... clurgmgrd[18510]: <emerg> #1: Quorum Dissolved Jun 15 16:11:53 rmamseslab07 openais[14087]: [CMAN ] lost contact with quorum device Jun 15 16:11:53 rmamseslab07 openais[14087]: [CMAN ] quorum lost, blocking activity Jun 15 16:11:53 rmamseslab07 clurgmgrd[18510]: <debug> Membership Change Event Jun 15 16:11:53 rmamseslab07 clurgmgrd[18510]: <emerg> #1: Quorum Dissolved Jun 15 16:11:53 rmamseslab07 clurgmgrd[18510]: <debug> Emergency stop of service:Cluster_test_2 Jun 15 16:11:53 rmamseslab07 clurgmgrd[18510]: <debug> Emergency stop of service:wdtcscript-rmamseslab05-ic Jun 15 16:11:53 rmamseslab07 clurgmgrd[18510]: <debug> Emergency stop of service:wdtcscript-rmamseslab07-ic Jun 15 16:11:54 rmamseslab07 clurgmgrd[18510]: <debug> Emergency stop of service:Logical volume 1 Jun 15 16:11:58 rmamseslab07 qdiskd[14130]: <debug> Node 1 missed an update (7/3) Jun 15 16:11:58 rmamseslab07 qdiskd[14130]: <notice> Writing eviction notice for node 1 Jun 15 16:11:58 rmamseslab07 qdiskd[14130]: <debug> Telling CMAN to kill the node Jun 15 16:11:58 rmamseslab07 openais[14087]: [CMAN ] quorum regained, resuming activity I’ve just logged a case but… any idea???? Regards, </div></div></blockquote><div>Hi! Have you set two_node="0" in cman section? Why don't you use any heuristics within the quorumd configuration? I.e: pinging a router... Could you paste us your cluster.conf? Greetings, Juanra </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div link="blue" vlink="purple" lang="EN-US"> <div> Alfredo Moralejo Business Platforms Engineering - OS Servers - UNIX Senior Specialist F. Hoffmann-La Roche Ltd. Global Informatics Group Infrastructure Josefa Valcárcel, 40 28027 Madrid SPAIN Phone: +34 91 305 97 87 <a href="mailto:alfredo.moralejo@roche.com" target="_blank">alfredo.moralejo@roche.com</a> Confidentiality Note: This message is intended only for the use of the named recipient(s) and may contain confidential and/or proprietary information. If you are not the intended recipient, please contact the sender and delete this message. Any unauthorized use of the information contained in this message is prohibited. </div> </div> -- Linux-cluster mailing list <a href="mailto:Linux-cluster@redhat.com">Linux-cluster@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/linux-cluster" target="_blank">https://www.redhat.com/mailman/listinfo/linux-cluster</a> </blockquote></div>